Fig. 3
From: Potential role of orexin A binding the receptor 1 for orexins in normal and cryptorchid dogs
OxA- and OX1R-IR in cytotypes of the CR group of dog testis. a, d: Leydig cells showing OX1R and OxA containing condensed granular material were intensely stained. b, e, f: intensely stained secretory granules condensed in the perinuclear portion of the cytoplasm of Sertoli cells. c: rare early germ cells immunoreactive to weakly stained OxA in the tubular compartment of the CR group. Avidin–biotin immunohistochemical technique. Bars: 20 μm